I hope someone had the same situation or someone know how to help me.
I am trying to migrate a database from openerp 6.1 to odoo, and i saw that the information from res.partner and res.partner_address from version 6.1 now is in res.partner. Without ussing the migration service of odoo what is the best ways to import the information from the two files to odoo?

And what are the best methods to migrate databases from 6.1 to odoo? Building modules or there are other ways like scripts?

The community OpenUpgrade is the only solution to migrate a database (unless you want to do it all yourself). You will need to upgrade from 6.1 -> 7.0 and then from 7.0 -> 8.0. If you have custom modules they will need to be upgrade by you or the original developer.

If historical data is not important to you and they want to start fresh. Some people have exported data in .CSV (Comma Separated Value) files and then imported them into Odoo v8.

Nor mine, I plan on using/contributing to OpenUpgrade. As for the link, I just hate looking for an answer and finding someone say do this but I have no idea how to do it. It takes more time but In the end you should be rewarded with your answer being accepted. hahaha

The plan is that my company wants to do the migation, without the use of the migration service. We are upgrading the custom modules, the problem we are facing now is the migration of the information from the tables of the database from 6.1 to 8.

I am testing if the etl model (https://github.com/ingadhoc/odoo-etl) can do the task.
Does anyone already tried to use it?
If so, do you have some feedback about it?